We are seeking a Network Security Engineer to design, build, and operate critical production network infrastructure supporting a global trading environment.

This is a hands-on role within a small, high-performing infrastructure team. You will contribute to architectural decisions, deliver projects end-to-end, and support systems used directly by trading and research teams globally.

The role demands strong technical depth, operational discipline, and a structured approach to troubleshooting. You must be comfortable operating in a production environment where stability, performance, and controlled change management are essential.

Responsibilities:

· Design, implement, and support resilient enterprise network infrastructure across data center and cloud environments

· Contribute to network architecture and capacity planning in collaboration with global infrastructure teams

· Configure and manage routing and switching across cor...